package com.xin.config;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author WYX
 * @create 2020-04-05-15:07
 */
public class MyInterceptor implements HandlerInterceptor {

    //return true：执行下一个拦截器，放行
    //return false：不执行下一个拦截器
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("===========处理前=============");
        return true;
    }

    //拦截日志
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("===========处理后=============");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("===========清理=============");
    }
}
